/* Референс: тёмная шапка, светлая зона, сетка «Ганта» по времени и кабинетам */
:root {
  --nav-bg: #0d0d0d;
  --nav-text: #f5f5f5;
  --nav-muted: #9ca3af;
  --nav-active: #22c55e;
  --page-bg: #e8ebf0;
  --card: #ffffff;
  --border: #c5cdd8;
  --text: #1a1a1a;
  --muted: #5c6570;
  --track-free: #d4edda;
  --track-alt: #e8f5e9;
  --block-booking: #db2777;
  --block-booking-hover: #be185d;
  --header-weekend: #1e3a5f;
  --primary: #16a34a;
  --danger: #b91c1c;
}

* { box-sizing: border-box; }
body.page-booking {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.4;
  min-height: 100vh;
}

/* ——— Тёмная навигация (как br-on.ru) ——— */
.nav-dark {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  min-height: 48px;
  background: var(--nav-bg);
  color: var(--nav-text);
  border-bottom: 1px solid #222;
}
.nav-dark__left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.nav-dark__logo {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.nav-dark__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-dark__link {
  color: var(--nav-muted);
  text-decoration: none;
  padding: 0.5rem 0.65rem;
  font-size: 0.9rem;
  border-radius: 4px;
}
.nav-dark__link:hover {
  color: var(--nav-text);
  background: rgba(255,255,255,.06);
}
.nav-dark__link--active {
  color: var(--nav-text);
  background: rgba(34, 197, 94, 0.15);
  box-shadow: inset 0 -2px 0 var(--nav-active);
}
.nav-dark__link--muted {
  cursor: default;
  pointer-events: none;
}
.nav-dark__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-dark__role {
  font-size: 0.75rem;
  color: var(--nav-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav-dark__user { font-size: 0.88rem; }
.inline-form { margin: 0; display: inline; }
.btn-nav-logout {
  background: #fff;
  color: #111;
  border: none;
  padding: 0.35rem 0.85rem;
  border-radius: 4px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-nav-logout:hover { filter: brightness(0.95); }

/* ——— Двухколоночный макет: форма + сетка ——— */
.page-body {
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - 48px);
}
.form-panel {
  width: 300px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 1rem 1.1rem 2rem;
  overflow-y: auto;
}
.form-panel__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}
.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0 0 0.85rem;
  line-height: 1.35;
}
.field-hint {
  font-weight: normal;
  font-size: 0.68rem;
  color: var(--muted);
  text-transform: none;
  letter-spacing: normal;
}
.checkbox-list {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
  max-height: 10.5rem;
  overflow-y: auto;
  padding: 0.35rem 0.5rem;
  margin-bottom: 0.15rem;
}
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.22rem 0;
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: normal;
  text-transform: none;
  letter-spacing: normal;
}
.checkbox-row input {
  flex-shrink: 0;
  margin: 0;
}
label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin: 0.55rem 0 0.2rem;
}
.control {
  width: 100%;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font: inherit;
  font-size: 0.9rem;
}
.control--inline {
  width: auto;
  min-width: 140px;
  margin-left: auto;
}
textarea.control { resize: vertical; min-height: 64px; }
.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.btn {
  cursor: pointer;
  border: none;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font: inherit;
  margin-top: 0.65rem;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.05); }
.wide { width: 100%; }
.error { color: var(--danger); font-size: 0.85rem; margin: 0.4rem 0; }

.main-area {
  flex: 1;
  min-width: 0;
  padding: 1rem 1.25rem 2rem;
}
.page-title {
  margin: 0 0 0.75rem;
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ——— Панель как на референсе: стрелки, Сегодня, Обновить ——— */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-bottom: 0.75rem;
}
.toolbar__dates {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.btn-toolbar {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-toolbar:hover { background: #f8fafc; }
.btn-toolbar--ghost { background: transparent; }
.btn-arrow {
  width: 36px;
  height: 32px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  border-radius: 4px;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}
.btn-arrow:hover { filter: brightness(1.08); }
.btn-today {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 4px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}
.btn-today:hover { background: #f1f5f9; }
.toolbar__label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted);
}

/* ——— Сетка расписания ——— */
.grid-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.grid-scroll {
  overflow-x: auto;
  overflow-y: visible;
  max-width: 100%;
}

.schedule-grid {
  min-width: 920px;
  font-size: 0.82rem;
}

.sg-top {
  display: grid;
  grid-template-columns: 168px minmax(520px, 1fr);
  position: sticky;
  top: 0;
  z-index: 4;
  background: var(--card);
  border-bottom: 2px solid var(--border);
}
.sg-corner {
  padding: 0.5rem 0.65rem;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.75rem;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
}
/* 30 половинчатых слотов 8:00 … 22:30 (как в ТЗ), подписи каждые 30 мин */
.sg-time-axis {
  display: grid;
  text-align: center;
  font-weight: 600;
  color: var(--muted);
}
.sg-time-axis--slots {
  grid-template-columns: repeat(30, minmax(24px, 1fr));
  font-size: 0.62rem;
}
.sg-time-axis--slots span {
  padding: 0.35rem 0.05rem;
  border-left: 1px solid #e2e8f0;
  overflow: hidden;
  text-overflow: clip;
  white-space: nowrap;
}
.sg-time-axis--slots span:first-child { border-left: none; }

.sg-building {
  border-bottom: 1px solid var(--border);
}
.sg-building-toggle {
  width: 100%;
  text-align: left;
  padding: 0.45rem 0.65rem;
  background: linear-gradient(180deg, #f8fafc, #eef2f6);
  border: none;
  border-bottom: 1px solid var(--border);
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.sg-building-toggle:hover { background: #e2e8f0; }
.sg-building--collapsed .sg-rooms { display: none; }
.sg-building--collapsed .sg-building-toggle .sg-chevron { transform: rotate(-90deg); }
.sg-chevron {
  display: inline-block;
  transition: transform 0.15s;
  color: var(--primary);
}

.sg-row {
  display: grid;
  grid-template-columns: 168px minmax(520px, 1fr);
  min-height: 34px;
  border-bottom: 1px solid #e5e7eb;
}
.sg-row:last-child { border-bottom: none; }
.sg-room-name {
  padding: 0.35rem 0.65rem;
  font-weight: 500;
  border-right: 1px solid var(--border);
  background: #fafbfc;
  display: flex;
  align-items: center;
}

.sg-track {
  position: relative;
  min-height: 34px;
  background-color: var(--track-free);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent calc(100% / 30 - 1px),
    rgba(0,0,0,.06) calc(100% / 30 - 1px),
    rgba(0,0,0,.06) calc(100% / 30)
  );
  cursor: crosshair;
}
.sg-track:hover { filter: brightness(0.98); }

.sg-block {
  position: absolute;
  top: 3px;
  bottom: 3px;
  min-width: 4px;
  background: var(--block-booking);
  color: #fff;
  border-radius: 3px;
  padding: 2px 5px;
  font-size: 0.72rem;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0,0,0,.2);
  z-index: 2;
}
.sg-block:hover {
  background: var(--block-booking-hover);
  z-index: 3;
}

/* Выделение выбранного интервала на дорожке (клик / перетаскивание) */
.sg-drag-range,
.sg-form-range {
  position: absolute;
  top: 2px;
  bottom: 2px;
  min-width: 3px;
  background: rgba(37, 99, 235, 0.28);
  border: 2px solid #2563eb;
  border-radius: 4px;
  z-index: 1;
  pointer-events: none;
  box-sizing: border-box;
}
.sg-drag-range--picked,
.sg-form-range {
  background: rgba(37, 99, 235, 0.18);
  border-color: #1d4ed8;
}

/* Загрузка броней — не блокируем клики (раньше pointer-events: none ломал выбор времени) */
.schedule-grid[aria-busy="true"] {
  opacity: 0.92;
  cursor: progress;
}

.form-panel--flash {
  animation: formFlash 0.7s ease;
}
@keyframes formFlash {
  from { box-shadow: inset 0 0 0 2px #22c55e; }
  to { box-shadow: inset 0 0 0 0 transparent; }
}

@media (max-width: 960px) {
  .page-body { flex-direction: column; }
  .form-panel {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}

/* Страница входа — без тёмной сетки */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: var(--page-bg);
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.login-card h1 { margin: 0 0 0.5rem; font-size: 1.35rem; }
.login-card .hint { margin-bottom: 1rem; }
.login-card .error { margin: 0 0 0.75rem; }
.login-card .btn-primary { margin-top: 0.75rem; }